National Medical Journal of China, Volume 93, Issue 22,2013, Pages 1737-1739, doi:10.3760/cma.j.issn.0376-2491.2013.22.014
National Medical Journal of China, Volume 93, Issue 22,2013, Pages 1696-1699, doi:10.3760/cma.j.issn.0376-2491.2013.22.005
National Medical Journal of China, Volume 93, Issue 22,2013, Pages 1691-1695, doi:10.3760/cma.j.issn.0376-2491.2013.22.004
National Medical Journal of China, Volume 93, Issue 22,2013, Pages 1758-1760, doi:10.3760/cma.j.issn.0376-2491.2013.22.020
National Medical Journal of China, Volume 93, Issue 22,2013, Pages 1743-1745, doi:10.3760/cma.j.issn.0376-2491.2013.22.016